uaggas once lived in South Africa. They are now extinct. People hunted them for their hides and meat. Quaggas fed on grass, which people also used to feed their sheep and goats.

Based on these facts, what is the LEAST LIKELY reason the quaggas became extinct?

Answers

Answer 1

Answer:

Temperature change

Explanation:


Related Questions

The retina of the eye bends light rays and focuses them. True or False?

Answers

True the answer is true

True .sorry if wrong

Plants are photoautotrophs. what does this mean? plants are photoautotrophs. what does this mean? they generate oxygen. they are the primary consumers of the biosphere. they are attracted to light. they synthesize their own food from inorganic materials. they use light energy to drive the synthesis of organic molecules from inorganic materials.

Answers

Photosynthesis occurs in their Chloroplasts, which only plants have. This means that plants undergo photosynthesis to create their own energy. Water(from the ground) + CO2(Carbon Dioxide) + Light(Energy) = glucose(sugar or energy) + oxygen. The glucose is the energy that all organisms need to function. Plants just use photosynthesis to make it. Photosynthesis occurs in their Chloroplasts, which only plants have.

Plants generate organic compounds from inorganic materials using light energy. The correct option is D.

Thus, plants are able to engage in photosynthesis. They transform carbon dioxide and water into glucose (a kind of organic molecule) and oxygen using light energy, often from the sun. Plants may create their own sustenance from inorganic materials thanks to a process carried out in the chloroplasts of plant cells.

The chemical processes that turn inorganic elements into organic molecules are propelled by the energy from sunshine, giving plants the nutrition and energy, they need to grow and develop. Because of this, plants are self-sufficient beings that can produce their own sustenance through photosynthesis.

Thus, the ideal selection is option D.

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What factor is a characteristic of passive transport? It is an energy-rich process. It occurs without energy input. It requires ATP. It requires transport proteins

Answers

B. It occurs without energy input.

it occurs without energy input

The nurse is caring for a client with suspected bacterial meningitis. what is a priority action for the nurse to initiate?

Answers

Of the following give choices;

Provide analgesia.

Give the Hib vaccine.

Practice airborne precautions.

Provide IV antibiotics.

The answer is Provide IV antibiotics. Bacterial meningitis is a medical emergency since it could lead to death within hours or few days if not managed/treated.  When IV antibiotics are given, in high doses (so they are able to pass the blood-brain barrier), the chances of deaths of the patient are reduced to 5% in all cases of bacterial meningitis.  






why do you think the deer population in 1905 was 4,000 even though the carrying capacity was predicted to be 30,000

Answers

Environmental factors 

explain why the sickle cell mutation is selected for in certain areas of the world

Answers

In certain areas of the world, inbreeding is much more common.
It is a natural defense against malaria, so where malaria is prevalent, it will follow

Hope this helps! :)

Apply: suppose you wanted a protein that consists of the amino acid sequence methionine, asparagine, valine, and histidine. give an mrna sequence that would code for this protein.

Answers

Every amino acid is transcribed from a specific mRNA sequences, particularly by 3 bases called codons. In this question, AUG codes for methionine; AAU codes for asparagine; GUU codes for valine; CAU codes for histidine; and UGA is the stop codon which terminates the sequence. 

5'-AUGAAUGUUCAUUGA-3'

A possible messenger RNA (mRNA) sequence capable of encoding this protein sequence would be AUGAAUGUUCAU.

During gene transcription, a gen nucleotide DNA sequence is used as a template to create a complementary mRNA nucleotide sequence, which is subsequently used to create a protein sequence by a process called translation.

During translation, triplets of nucleotides or codons in the mRNA sequence determine specific amino acids.

The genetic code is said to be 'redundant' because different codons can encode the same amino acid residue.

For example, Valine is an amino acid that can be encoded by four different codons (GUU, GUC, GUA and GUG).

In the example above:

The codon AUG (first codon) encodes methionine amino acids. The codon AAU (second codon) encodes asparagine amino acids. The codon GUU (third codon) encodes valine amino acids.The codon CAU (fourth codon) encodes histidine amino acids.

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Drinking too much water during exercise can cause a condition in which the concentration of sodium in the blood is lower than normal. What response do you expect to happen as the body tries to restore homeostasis?
Cells swell as water moves into them.
Cells swell as water moves out of them.
Cells shrivel as water moves out of them.
Cells shrivel as water moves into them.

Answers

The right answer is Cells shrivel as water moves out of them.

Water intoxication (hyperhydration) occurs when too much water consumption causes a decrease in the concentration of electrolytes in the blood, partly because the electrolytes are eliminated in excessive amounts, on the other hand by increasing blood volume without sufficient electrolytes. When the intercellular (extracellular) medium is too diluted relative to the intracellular medium, the osmotic pressure induced by this difference can cause the cells concerned to explode (the cell wall ruptures under pressure), in the first place the nerve cells, which causes disorders brain that can be severe or even fatal.

Answer:

C. Cells shrivel as water moves out of them.

Explanation:

It's right on edg

Listening for sounds within the body defines?

Answers

Listening for sounds produced within the body defines auscultation. 
Final answer:

Listening for sounds within the body, known as auscultation, is commonly used in Biology to study internal sounds produced by organs. This technique involves using a stethoscope to listen for and diagnose medical conditions.

Explanation:

Listening for sounds within the body is known as auscultation. This technique is commonly used in the field of Biology to study the sounds produced by organs and structures inside the body, such as the heart, lungs, and blood vessels.

Auscultation involves using a stethoscope to listen to these internal sounds. Healthcare professionals, such as doctors and nurses, use auscultation to diagnose and monitor various medical conditions.

Three SEO keywords: auscultation, internal sounds, stethoscope.

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A ___ emits light and a ___ reflects light.

a. planet, star
b. star, sun
c. moon, planet
d. star, planet

Answers

I believe it would be D.)!
Hope this helped!
~Wolfe<3

Final answer:

The correct answer is d. star, planet. A star emits light through nuclear fusion, while a planet reflects light from a star. When light from a star passes through interstellar gas or is reflected by dust, its spectrum shows absorption lines and intensity reductions.

Explanation:

A star emits light from its core due to nuclear fusion, while a planet reflects light from a star such as the Sun. Therefore, the correct answer to the fill-in-the-blank question 'A ___ emits light and a ___ reflects light' is d. star, planet.

When observing a star, if the light emission is unobstructed, an observer would see light directly from the star. However, if the light emission is obstructed by a cloud of hydrogen gas, the observations would differ in that some frequencies will be absorbed from the spectrum (option c), causing the observed light to have dark lines or bands where the gas has absorbed specific frequencies.

Discussing the spectrum of starlight reflected by dust compared to a star observed behind invisible interstellar gas, the spectra would show intensity reductions in light and possibly absorption lines due to the materials between the star and the observer.

The lensing effect of gravity on light, as observed by the Hubble Space Telescope, reveals that stars glow by nuclear fusion while planets, which do not have fusion, are typically seen by the light they reflect.

In many places, large areas of land have been converted into heavily populated cities full of buildings and concrete. This process is called

Answers

The process is called urbanization.

In a plant species, if the b allele (blue flowers) and the b allele (white flowers) are incompletely dominant (bb is light blue), what offspring ratio is expected in a cross between a blue-flowered plant and a white-flowered plant?
a. 3/4 blue:1/4 white
b. all light blue
c. 1/2 blue:1/2 white
d. 1/4 blue:1/2 light blue:1/4 white
e. 1/3 blue:1/3 light blue:1/3 white

Answers

In a plant species, if the b allele (blue flowers) and the b allele (white flowers) are incompletely dominant (bb is light blue), an all light blue offspring ratio is expected in a cross between a blue-flowered plant and a white-flowered plant.

The ratio of the offspring that is expected in a cross between a blue-flowered plant and a white-flowered plant is all light blue. The correct option is b.

What are alleles?

An allele is a term used for two or alternate forms of genes. The allele is a type of variation in a gene. Gene is a unit of heredity. The different types of alleles are normal and wild type allele and abnormal and mutant alleles.

If the b allele (blue flowers) and the b allele (white flowers) are not fully dominant in a certain plant species (bb is light blue). When a blue-flowered plant and a white-flowered plant are crossed, an all-light blue progeny ratio is what is anticipated.

Therefore, the correct option is b. all light blue regarding the ratio of offspring of produce when a cross occurs between a blue and white-flowered plant.

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How can pesticide use be harmful to human agriculture?
a.
The loss of beneficial microfauna can reduce soil productivity.
b.
Pesticides eliminate harmful insect pests.
c.
Pesticides target the elimination of beneficial soil microflora.
d.
The use of pesticides kills all soil microflora and microfauna.

Answers

The Answer is (A) 
Because the pesticide will kill off the bugs and weeds but will damage the soil so after the crops you have in the ground now just will not grow there again until 1 year after the pesticide has washed away
hope I helped
the answer should be A....

which zone of the ocean is also known as the midnight zone?

Answers

The bathypelagic, also known as Bathyal Zone, or the Aphotic Zone
The answer is Bathypelahic

The earth is estimated to be about 4.5 billion years old. Rocks and rock formations found throughout earth’s crust give scientists clues to the past. They assume that the processes that acted on the crust millions of years ago are the same processes that act on and within earth today. This is called the principle of uniformity or uniformitarianism.

The law of superposition helps us infer the age of rock layers, or strata. This law states that, if layers of rock are left undisturbed, the layers at the bottom are the oldest. The lower layers must be in place before younger layers can be deposited on top of them. Scientists infer the relative age of the layers as well as any fossils found within them. The law of superposition does have exceptions. Some processes within the earth cause younger layers to be moved below older. Folding, faulting, and intrusion can cause these exceptions. Regardless of position, any rock is always older than the process that changed it.
Geologist infer that the fossils number 3 and 5 are approximately the same age. This assumption of relative age is based on what information from the passage?

Answers

Hi there!

Since the passage said that older fossils are most likely underneath newer ones, we can conclude that both fossils were buried at similar depths of ground in similar places. 

Hope this helps!

Answer:

It is based on the law of superposition to infer the age of rock layers and there by determining the age of fossils present in it.

Explanation:

From the passage, the law of superposition states that lower is the layer of rock, older is its age. We can determine the relative age of rock layers with the help of this law, if the the rock layers are not disturbed during the course of time.

Since fossils can be observed in these rock layers we can use the technique of relative dating to determine the relative age of fossils. In this method, we can reasonably say that the fossils found closer to the surface of earth are the more recent ones than the fossils found in the deeper layers of rock.

Fossils found in the same layer of rock can be supposed to be of same age. This relative dating method is useful to compare the ages of fossils but we cannot precisely find it.  

Which statement describes the importance of the nitrogen cycle to living things check all that apply

Answers

It helps us survive       

Answers are: b) It help cells make protein ; c) It provides a form of usable nitrogen.

Nitrogen cycle is important for all living things as nitrogen is an important constituents of amino acids which makes protein, nucleic acids such as DNA and RNA, ATP and other compounds which are essential for life. During Nitrogen cycle, nitrogen is fixed into ammonia by bacteria. Ammonia is converted into nitrite and then to nitrate. Nitrate is the most usable form of nitrogen by plants. Animals feed on plants to get nitrogen. After death of plants and animals, they decomposed by bacteria and nitrogen is cycled back to atmosphere.

Which is the highest point in the sky that the Sun reaches on a given day? A. ecliptic B. solstice C. tropic D. zenith

Answers

zenith would be your answer

Neurofibromatosis, a genetic disease caused by mutation on the NF1 gene, follows an autosomal dominant pattern of inheritance. The diagram shows that the father carries two copies of the defective gene and the mother is unaffected. What percentage of offspring will have neurofibromatosis?


Affected: RR Normal: rr


A: 0%

B: 25%

C: 50%

D: 100%

Answers

As you can see in a cross shown in the image below, all of the progeny would have the Rr genotype.
Since the NF1 gene that is the genetic causes of Neurofibromatosis is expressing an autosomal dominant pattern of inheritance, the heterozygotes would also have the disease.
Therefore, the correct answer is D, 100%.

Answer:

100% is the correct answer

Explanation:

Which of the following is an example of maintaining homeostasis? Learning Jumping Shivering Smiling

Answers

The answer is D, sweating.

Homeostasis is where the body uses some mechanisms to maintain a optimum condition for the body to function. These conditions may include body temperature, blood glucose level etc.

Sweating is a mechanism that can help maintain the body temperature. During hot conditions, the sweat glands under the skin surface may produce sweat, which is then released to the skin surface. When the sweat is on the skin surface, they evaporate. During evaporation, heat energy is brought away from the skin as the sweat molecules that have a higher kinetic energy (=temperature) escaped from the sweat drop. The average temperature of the sweat is reduced. Eventually, the temperature of the body is decreased and this help maintain the suitable temperature for the body to function.

Therefore, your answer is D, sweating.

Answer:

Option). shivering.

Explanation:

Homeostasis can be defined as maintaining the steady state of chemical and physical conditions by living organisms. Shivering is one way to achieve homeostasis as it maintains internal body temperature.

The average internal human body temperature is 98.6 F. A drop in body temperature is detected by nervous system that triggers muscle contraction to start shivering. Shivering increases body temperature by producing heat and restores homeostasis.

Thus, the correct answer is option). 'shivering.'

When prescribing tacrolimus (protopic) to treat atopic dermatitis patients should be informed that:?

Answers

FDA issued a black box warning about the use of  Tacrolimus and the development of cancer in animals and humans.

Tacrolimus is a topical drug used for dematitis. It is a chronic condition which the skin becomes inflammed, red, itchy. The inflammation is caused by the activation of immune function of the patient. Tacrolimus is used as topical agent to suppress the function of immune system and inflammation by inhibition of calcineurin. This is an enzyme needed for T cell production. T cells plays a big factor in the activation of immune system.

An air mass that formed over land is going to bring _______ weather.

Answers

warm and humid should be your answer

Actually its dry weather.

What is the importance DNA in the human body

Answers

Copy whichever but the second one is most correct

Which brain study technique is not correctly matched with a limitation?

Answers

EEF or electroencephalogram expensive and time consuming.

Hope this helps!

Which of these is not supported by the endosymbiosis theory concerning organelles? A) contain DNA. B) contain ribosomes. C) are capable of living independently. D) are surrounded by a double membrane.

Answers

The answer to this question is c) are capable of living independently.

The endosymbiotic theory is a theory regarding the origin of eukaryotic cells from prokaryotes, which states that the organelles that are specific to eukaryotes evolved from prokaryotic organisms with a single cell.

What the theory specifies is that the mitochondria and the chloroplast (as well as other plastids) are prokaryotes that used to be free-living, but have entered a eukaryotic cell about 1.5 billion years ago, and somehow managed to survive in the conditions inside it. What happened after the prokaryotic cell survived inside the eukaryotic cell is that it started relying more and more on its host, so most of the genes were tranfered to the genome of the eukaryotic cell. We can see this in today's mitochondria which has its own genome, with only genes that are completely necessary for it's survival, while most other genes it requires are a part of the nuclear DNA.

Going back to your question, both the mitochondria and the choloroplasts have two layers of phospholipids, so they have a double membrane, which suggests that they arose by entering the eukaryotic cell. The bacteria which these organelles could have originated from are bound by a vesicle when they enter a cell through the process of endocytosis, explaining how the double membrane could have appeared. Also, both of these organelles have their own DNA and ribosomes which are very similar to bacterial ones.

The only thing out of the answers you've provided that isn't supported by the endosymbiotic theory is that they aren't capable of living independently, since they have accustomed to the environment of their host cell, and need the nuclear genome to survive.

The endosymbiosis theory is supported by all BUT one piece of modern-day evidence. That is both organelles are capable of living independently. Although both organelles contain RNA, DNA, and ribosomes, if extracted from eukaryotic cells, they are not capable of living independently.

Explain two ways that the heart can overcome excessive vagal stimulation

Answers

The heart can overcome excessive vagal stimulation through sympathetic reflexes and the initiation of a rhythm by the Purkinje fibers.
Final answer:

The heart can overcome excessive vagal stimulation primarily through sympathetic stimulation and response to stimuli such as blood loss. The sympathetic stimulation, driven by the cardioaccelerator regions, stimulates the release of certain compounds that increase the metabolic rate and contraction force of the heart. In response to stimuli like blood loss, the heart rate increases and blood pressure rises, offsetting the excessive vagal stimulation.

Explanation:

The heart, when facing excessive vagal stimulation, can counterbalance it primarily in two ways, which are centralized in the cardiovascular centers of the medulla oblongata.

First, sympathetic stimulation can overcome excessive vagal stimulation. The cardioaccelerator regions within the cardiovascular centers drive this sympathetic stimulation via the cardioaccelerator nerves. This stimulation has a stimulatory effect on the heart: it triggers the release of norepinephrine (NE) at the neuromuscular junction from the cardiac nerves and also encourages the adrenal cortex to secrete epinephrine and NE. These compounds bind to alpha and beta receptors on the cardiac muscle cell membrane, increasing the metabolic rate and the force of contraction, thereby escalating the stroke volume (SV) and heart rate (HR).

Secondly, in response to stimuli such as blood loss, baroreceptors trigger the cardiovascular centers to stimulate sympathetic responses to increase cardiac output and vasoconstriction. This mechanism prompts the heart rate to increase and consequently increases blood pressure, managing to override the excessive vagal (parasympathetic) stimulation.

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Using what you have learned about the structure and function of neurons, work with you partner to outline the order of events that get your desired result(s). how does information from the outside world cause a response from your body?19. include the terms listed below in your flow chart. you may wish to add additional items to show multiple responses of the body. o motor neuronso sensory neuronso association neuronso an eyeo a cockroacho a leg or an armo the brain or central nervous system

Answers

A stimulus, the cockroach is sensed by your eyes.
Your eyes transmit nerve impulses from the optic nerve, the a group of sensory neurons, to the brain, the central nervous system.

In the brain, the impulse is then transferred by relay / association neurons to the motor neurons which signals the effector which is the muscle in your legs to contract, making you jump in shock

How would you microscopically distinguish a eudicot stem from a monocot stem?

Answers

Answer:
Monocots have a lot of grain in their vascular bundle that is scattered and eudicots have a more organized ring arrangement.

Explanation:

Monocots have one cotyledon in seed, having root xylem and phloem in a ring. Moreover, their Vascular bundles are scattered in the stem, their Leaf veins form a parallel pattern. And flower parts are in threes or multiples of threes. On the Other hand, Eudicots have cotyledons in seed and their Root phloem is between arms of xylem.Their Vascular bundles are formed in distinct rings with Leaf veins form a net pattern. Moreover, flower parts are in fours or fives and their multiples.

Answer:

Eudicot stems are characterized by presence of pith, vascular cambium and arrangement of vascular bundles in ring.

Explanation:

A eudicot stem is  microscopically distinguish from a monocot stem on the basis of following features:

1. Monocots stems are characterized by presence of scattered vascular bundles while the eudicot stem have the vascular bundles arranged in ring.  

2. Monocot stems do not have pith and vascular cambium which are present in eudicot stem.

When assessing an older adult client, the nurse recognizes the client has a significant hearing loss. the most appropriate intervention by the nurse is to
a. shout into the client's good ear.
b. repeat words the client doesn't understand.
c. introduce herself first.
d. check the hearing aid batteries?

Answers

It would be appropriate to D.) Check the hearing aid batteries

The agents of metamorphism are _______.
a. uplifting and folding
b. foliation and deposition
c. contact and regional deformation
d. heat, pressure, and chemical fluids
e. slaty and platy cleavage

Answers

The agents of metamorphism are heat, pressure, and chemical fluids.

The agents of metamorphism are  heat, pressure, and chemical fluids. Hence, option (d) is correct.

What is metamorphism?

The process of metamorphism involves changing the protolith, an existing rock, into a new rock with a different mineral composition or texture. The rock remains essentially solid throughout the metamorphism process, which happens at temperatures between 150°C and 200 °C (300°F and 400 °F), as well as frequently at high pressures or in the presence of chemically active fluids. Weathering and diagenesis, which are changes that occur at or near the Earth's surface, are not the same as metamorphism.

Metamorphism can take many different forms, such as regional, contact, hydrothermal, shock, and dynamic metamorphism. The typical temperatures, pressures, and rates at which they occur, as well as the degree to which reactive fluids are involved, vary between these. Prograde metamorphism is that which occurs under conditions of rising pressure and temperature.

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The perception of color depends on the __________ of light an object reflects. A.function B.amplitude C.variation D.wavelength

Answers

Answer:

The perception of color depends on the Wavelength of light an object reflects.

Explanation:

The answer is D: Wavelength because the shorter or more compressed the waves are, the more the color will be darker or more concentrated if that makes sense.

Stay safe and Good Luck!

The wavelengths of visible light split into the rainbow's colors as it passes through a prism because each color has a unique wavelength. The electromagnetic spectrum is the collective term for all wavelengths. Thus, option D is correct.

What is impact of wavelength in color of light?

The light waves that an object reflects determine its “color.” This is determined by the configuration of electrons in the atoms of that substance.

Which, in accordance with complex quantum principles, will absorb and remit photons of a certain energy.

Visible light has a spectrum, and this spectrum is what determines the color of the light.

The colors of light with the longest and shortest wavelengths are red and violet, respectively. The wavelengths of every other color of light are located in between.

Therefore, The perception of color depends on the wavelength of light an object reflects.

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At the end of each year, how much money would you earn in interest if you invested $3,500 and earned 4.5% simple interest? help help help!!!ill return Three-year-old jamal is learning how to wait his turn to talk during circle time in preschool. jamal is learning the _____ of language. For the data in the table, does y vary directly with x? If it does write an equation for the direct variation. x 2 6 10 y 5 15 25 What method of separation would work best on a homogeneous mixture salt water?Select all that apply.A) filtrationB) distillationC) evaporationD) screening What was one effect of the erie canal This symbiotic relationship provides support for the theory of endosymbiosis, which states that A)animal-like cells evolved from ancestors that were photosynthetic. B)mitochondria and chloroplasts evolved from small prokaryotes living within larger cells. C)photosynthetic organisms, like today's land plants, evolved from photosynthetic bacteria. D)heterotrophic organisms could not have evolved before the evolution of photosynthetic organisms. # 11 let f(x) =x^2 and g(x) =x-1. find (f o g)(-3) #12 let f(x)= 5x+3 and g(x) =x^2-x+1 preform the function operating then find the domain. g(x)-f(x) the standard addition algorithm below is being used to add three two-digit numbers 4z + 27 + x 5 equals y 14. If x, y, and z each represent a different digit from 0 to 9 what is the value of (x)(y)(z)? Write a trinomial in one variable of degree 5 in standard form. fossils of a shellfish was found high on the top of a mountain how would you describe harlem of the 1920's based on your reading of this of this excerpt Need this answered today also explain the answers please Julia measured the high temperature in her town for one week. Using the chart below, find the mean absolute deviation for the high temperatures. Round your answer to the nearest tenth. Be sure to show your work for finding: the mean of the set of data the distance of each number from the mean the mean absolute deviation The federal securities act and the securities exchange commission aimed to How did the second great awakening differ from the first great awakening? when a the irregularities of one surface come into contact with those of another surface ,occurs How does it ease the burden of the giver to transmit memories to jonas? What is the value of the 5 in 3 590 answer in words Shared leadership attained renewed interest in the 1980s and 1990s in response to The character of Maxwell in In His Steps may best be described as _